1 files changed, 140 insertions, 0 deletions
diff --git a/yarnhelper.py b/yarnhelper.py
new file mode 100644
index 0000000..5b087be
--- /dev/null
+++ b/yarnhelper.py
@@ -0,0 +1,140 @@
+# Copyright 2016  Lars Wirzenius
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# =*= License: GPL-3+ =*=
+
+
+import email
+import imaplib
+import os
+import subprocess
+import urlparse
+
+import cliapp
+import requests
+import yaml
+
+
+variables_filename = os.environ.get('VARIABLES', 'vars.yaml')
+
+
+class YarnHelper(object):
+
+    def __init__(self):
+        self._env = dict(os.environ)
+        self._next_match = 1
+        self._variables = None  # None means not loaded, otherwise dict
+
+    def set_environment(self, env):
+        self._env = dict(env)
+
+    def get_next_match(self):
+        name = 'MATCH_{}'.format(self._next_match)
+        if name not in self._env:
+            raise Error('no next match')
+        self._next_match += 1
+        return self._env[name]
+
+    def get_variable(self, name):
+        if self._variables is None:
+            self._variables = self._load_variables()
+        if name not in self._variables:
+            raise Error('no variable {}'.format(name))
+        return self._variables[name]
+
+    def _load_variables(self):
+        if os.path.exists(variables_filename):
+            with open(variables_filename, 'r') as f:
+                return yaml.safe_load(f)
+        return {}
+
+    def set_variable(self, name, value):
+        if self._variables is None:
+            self._variables = {}
+        self._variables[name] = value
+        self._save_variables(self._variables)
+
+    def _save_variables(self, variables):
+        with open(variables_filename, 'w') as f:
+            yaml.safe_dump(variables, f)
+
+    def construct_aliased_http_request(
+            self, address, method, url, data=None, headers=None):
+
+        if headers is None:
+            headers = {}
+
+        parts = list(urlparse.urlparse(url))
+        headers['Host'] = parts[1]
+        parts[1] = address
+        aliased_url = urlparse.urlunparse(parts)
+
+        r = requests.Request(method, aliased_url, data=data, headers=headers)
+        return r.prepare()
+
+    def http_get(self, address, url):  # pragma: no cover
+        r = self.construct_aliased_http_request(address, 'GET', url)
+        s = requests.Session()
+        resp = s.send(r)
+        return resp.status_code, resp.content
+
+    def assertEqual(self, a, b):
+        if a != b:
+            raise Error('assertion {!r} == {!r} failed'.format(a, b))
+
+    def assertNotEqual(self, a, b):
+        if a == b:
+            raise Error('assertion {!r} != {!r} failed'.format(a, b))
+
+    def assertGreaterThan(self, a, b):
+        if a <= b:
+            raise Error('assertion {!r} > {!r} failed'.format(a, b))
+
+    def assertIn(self, a, b):
+        if a not in b:
+            raise Error('assertion {!r} in {!r} failed'.format(a, b))
+
+    def get_password_with_pass(self, pass_home, pass_name):  # pragma: no cover
+        p = subprocess.Popen(
+            ['env', 'HOME={}'.format(pass_home), 'pass', 'show', pass_name],
+            stdout=subprocess.PIPE)
+        stdout, stderr = p.communicate()
+        password = stdout.rstrip()
+        return password
+
+    def iterate_mails_in_imap_mailbox(
+            self, address, user, password, callback, exp):  # pragma: no cover
+        m = imaplib.IMAP4_SSL(address)
+        m.login(user, password)
+        m.select('INBOX', False)
+        typ, data = m.search(None, 'ALL')
+        for num in data[0].split():
+            typ, data = m.fetch(num, '(RFC822)')
+            typ, text = data[0]
+            msg = email.message_from_string(text)
+            callback(m, num, msg)
+        if exp:
+            m.expunge()
+        m.close()
+        m.logout()
+
+    def gitano(self, args):  # pragma: no cover
+        server = os.environ['GITANO_SERVER']
+        return cliapp.ssh_runcmd('git@{}'.format(server), [args])
+
+
+class Error(Exception):
+
+    pass